From: Aristeu Rozanski <aris@ruivo.org>
Date: Mon, 12 Nov 2007 20:14:49 +0000 (-0500)
Subject: USB: usb_serial_console: fix command line parsing
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=27680d232b04d434d8d49a8417429b9512ffb7c6;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

USB: usb_serial_console: fix command line parsing

Currently usb serial console support ignores the device and always use
ttyUSB0.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 0362654d3b5..72ab3bbf0f2 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -133,11 +133,14 @@ static int usb_console_setup(struct console *co, char *options)
 	}
 	co->cflag = cflag;
 
-	/* grab the first serial port that happens to be connected */
-	serial = usb_serial_get_by_index(0);
+	/*
+	 * no need to check the index here: if the index is wrong, console
+	 * code won't call us
+	 */
+	serial = usb_serial_get_by_index(co->index);
 	if (serial == NULL) {
 		/* no device is connected yet, sorry :( */
-		err ("No USB device connected to ttyUSB0");
+		err ("No USB device connected to ttyUSB%i", co->index);
 		return -ENODEV;
 	}